From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Date: Thu, 17 Apr 2014 12:28:20 +0000 (-0300)
Subject: [media] media: stk1160: Avoid stack-allocated buffer for control URBs
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~25^2~27
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=85ac1a1772bb41da895bad83a81f6a62c8f293f6;p=pandora-kernel.git

[media] media: stk1160: Avoid stack-allocated buffer for control URBs

Currently stk1160_read_reg() uses a stack-allocated char to get the
read control value. This is wrong because usb_control_msg() requires
a kmalloc-ed buffer.

This commit fixes such issue by kmalloc'ating a 1-byte buffer to receive
the read value.

While here, let's remove the urb_buf array which was meant for a similar
purpose, but never really used.

Cc: Alan Stern <stern@rowland.harvard.edu>
Reported-by: Sander Eikelenboom <linux@eikelenboom.it>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: stable@vger.kernel.org      # for v3.7 and up
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---

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